Alert archive / Oregon / High Wind Watches in 2017
High Wind Watch 21, NWS Medford, OR
NWS Medford, OR issued this high wind watch at Dec 28, 2017, 11:39 AM PST for Klamath County, Lake County, Oregon; Modoc County, California. It took effect at Dec 29, 2017, 1:00 PM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 28, 2017, 11:39 AM PST (19:39 UTC)
- In effect from
- Dec 29, 2017, 1:00 PM PST
- Expired
- Dec 28, 2017, 3:01 PM PST
- In force
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 151 km from the middle of the area, began a volume at 19:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 7.7 hours before the alert went out and 154 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 452 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
877 WWUS76 KMFR 281939 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 1139 AM PST Thu Dec 28 2017 ...Strong winds east of the Cascades Friday... .Southwest winds will increase east of the Cascades Friday afternoon ahead of a strong cold front. The strongest winds are likely too occur late Friday afternoon and are expected to decrease below warning levels by late Friday evening. CAZ085-ORZ030-031-290745- /O.NEW.KMFR.HW.A.0021.171229T2100Z-171230T0600Z/ Modoc County- Northern and Eastern Klamath County and Western Lake County- Central and Eastern Lake County- Including the city of Valley Falls 1139 AM PST Thu Dec 28 2017 ...HIGH WIND WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... The National Weather Service in Medford has issued a High Wind Watch...which is in effect from Friday afternoon through Friday evening. * Winds...Southwest around 45 mph with gusts in excess of 60 mph. * Timing...Increasing Friday afternoon with strongest winds late Friday afternoon into early Friday evening. * Locations include...Highway 31 from Valley Falls to Silver Falls, including the communities of Summer lake and Paisley. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Watch means there is the potential for a hazardous high wind event. Sustained winds of at least 40 mph, or gusts of 58 mph or stronger may occur. Continue to monitor the latest forecasts. && $$ Sven
1 follow-up statement
713 WWUS76 KMFR 282301 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 301 PM PST Thu Dec 28 2017 ...Strong winds east of the Cascades Friday... .Southwest winds will increase east of the Cascades Friday afternoon ahead of a strong cold front. The strongest winds are likely too occur late Friday afternoon and are expected to decrease below warning levels by late Friday evening. CAZ085-ORZ030-031-291215- /O.UPG.KMFR.HW.A.0021.171229T2100Z-171230T0600Z/ /O.NEW.KMFR.HW.W.0020.171229T2100Z-171230T0600Z/ Modoc County- Northern and Eastern Klamath County and Western Lake County- Central and Eastern Lake County- Including the city of Valley Falls 301 PM PST Thu Dec 28 2017 ...HIGH WIND WARNING IN EFFECT FROM 1 PM TO 10 PM PST FRIDAY... The National Weather Service in Medford has issued a High Wind Warning...which is in effect from 1 PM to 10 PM PST Friday. The High Wind Watch is no longer in effect. * Winds...Southwest around 40 mph with gusts in excess of 60 mph. * Timing...Increasing Friday afternoon with strongest winds late Friday afternoon into early Friday evening. * Locations include...Highway 31 from Valley Falls to Silver Falls, including the communities of Summer lake and Paisley. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. && $$
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 2:25 PM PST | Gale Warning | MFR | 30 hr | |
| Dec 28, 3:01 PM PST | High Wind Warning | MFR | Klamath, Lake | 24 hr |
Nearby
High Wind Watches in Oregon, 2017High Wind Watches in California, 2017Every high wind watch in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.